From: Mattias Engdegård <mattiase@acm.org>
Date: Wed, 1 Mar 2023 12:37:06 +0000 (+0100)
Subject: Simplify effect-free code elimination
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=42f46913884c5e431a0e6cc80b1808fc0ca636cf;p=emacs.git

Simplify effect-free code elimination

* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Simplify overly defensive code.  This does not affect code generation.
---

diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el
index 12aa8fb3982..0ae4c452c73 100644
--- a/lisp/emacs-lisp/byte-opt.el
+++ b/lisp/emacs-lisp/byte-opt.el
@@ -515,9 +515,7 @@ for speeding up processing.")
 			   form)
 			  nil)))))
        (byte-compile-log "  %s called for effect; deleted" fn)
-       ;; appending a nil here might not be necessary, but it can't hurt.
-       (byte-optimize-form
-	(cons 'progn (append (cdr form) '(nil))) t))
+       (byte-optimize-form (cons 'progn (cdr form)) t))
 
       (_
        ;; Otherwise, no args can be considered to be for-effect,